<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <div id="main" style="width: 80%; height: 400px"></div>
      <!-- 2为 ECharts 准备一个具备大小（宽高）的 DOM  -->
    </el-card>
  </div>
</template>
<script>
import * as echarts from "echarts";
// 导入假数据，没必要从数据库拿，但是有用的数据
import Source from "../news/soruce.js";
export default {
  mounted() {
    this.beautiful()
  },
  data() {
    return {
      Source,
    };
  },
  methods: {
    beautiful() {
      var myChart = echarts.init(document.getElementById("main"));
      const data = [
        [
          [28604, 77, 17096869, "Australia", 1990],
          [31163, 77.4, 27662440, "Canada", 1990],
          [1516, 68, 1154605773, "China", 1990],
          [13670, 74.7, 10582082, "Cuba", 1990],
          [28599, 75, 4986705, "Finland", 1990],
          [29476, 77.1, 56943299, "France", 1990],
          [31476, 75.4, 78958237, "Germany", 1990],
          [28666, 78.1, 254830, "Iceland", 1990],
          [1777, 57.7, 870601776, "India", 1990],
          [29550, 79.1, 122249285, "Japan", 1990],
          [2076, 67.9, 20194354, "North Korea", 1990],
          [12087, 72, 42972254, "South Korea", 1990],
          [24021, 75.4, 3397534, "New Zealand", 1990],
          [43296, 76.8, 4240375, "Norway", 1990],
          [10088, 70.8, 38195258, "Poland", 1990],
          [19349, 69.6, 147568552, "Russia", 1990],
          [10670, 67.3, 53994605, "Turkey", 1990],
          [26424, 75.7, 57110117, "United Kingdom", 1990],
          [37062, 75.4, 252847810, "United States", 1990],
        ],
        [
          [44056, 81.8, 23968973, "Australia", 2015],
          [43294, 81.7, 35939927, "Canada", 2015],
          [13334, 76.9, 1376048943, "China", 2015],
          [21291, 78.5, 11389562, "Cuba", 2015],
          [38923, 80.8, 5503457, "Finland", 2015],
          [37599, 81.9, 64395345, "France", 2015],
          [44053, 81.1, 80688545, "Germany", 2015],
          [42182, 82.8, 329425, "Iceland", 2015],
          [5903, 66.8, 1311050527, "India", 2015],
          [36162, 83.5, 126573481, "Japan", 2015],
          [1390, 71.4, 25155317, "North Korea", 2015],
          [34644, 80.7, 50293439, "South Korea", 2015],
          [34186, 80.6, 4528526, "New Zealand", 2015],
          [64304, 81.6, 5210967, "Norway", 2015],
          [24787, 77.3, 38611794, "Poland", 2015],
          [23038, 73.13, 143456918, "Russia", 2015],
          [19360, 76.5, 78665830, "Turkey", 2015],
          [38225, 81.4, 64715810, "United Kingdom", 2015],
          [53354, 79.1, 321773631, "United States", 2015],
        ],
      ];
      myChart.setOption({
        backgroundColor: new echarts.graphic.RadialGradient(0.3, 0.3, 0.8, [
          {
            offset: 0,
            color: "#f7f8fa",
          },
          {
            offset: 1,
            color: "#cdd0d5",
          },
        ]),
        title: {
          text: "Life Expectancy and GDP by Country",
          left: "5%",
          top: "3%",
        },
        legend: {
          right: "10%",
          top: "3%",
          data: ["1990", "2015"],
        },
        grid: {
          left: "8%",
          top: "10%",
        },
        xAxis: {
          splitLine: {
            lineStyle: {
              type: "dashed",
            },
          },
        },
        yAxis: {
          splitLine: {
            lineStyle: {
              type: "dashed",
            },
          },
          scale: true,
        },
        series: [
          {
            name: "1990",
            data: data[0],
            type: "scatter",
            symbolSize: function (data) {
              return Math.sqrt(data[2]) / 5e2;
            },
            emphasis: {
              focus: "series",
              label: {
                show: true,
                formatter: function (param) {
                  return param.data[3];
                },
                position: "top",
              },
            },
            itemStyle: {
              shadowBlur: 10,
              shadowColor: "rgba(120, 36, 50, 0.5)",
              shadowOffsetY: 5,
              color: new echarts.graphic.RadialGradient(0.4, 0.3, 1, [
                {
                  offset: 0,
                  color: "rgb(251, 118, 123)",
                },
                {
                  offset: 1,
                  color: "rgb(204, 46, 72)",
                },
              ]),
            },
          },
          {
            name: "2015",
            data: data[1],
            type: "scatter",
            symbolSize: function (data) {
              return Math.sqrt(data[2]) / 5e2;
            },
            emphasis: {
              focus: "series",
              label: {
                show: true,
                formatter: function (param) {
                  return param.data[3];
                },
                position: "top",
              },
            },
            itemStyle: {
              shadowBlur: 10,
              shadowColor: "rgba(25, 100, 150, 0.5)",
              shadowOffsetY: 5,
              color: new echarts.graphic.RadialGradient(0.4, 0.3, 1, [
                {
                  offset: 0,
                  color: "rgb(129, 227, 238)",
                },
                {
                  offset: 1,
                  color: "rgb(25, 183, 207)",
                },
              ]),
            },
          },
        ],
      })
    },
  },
};
</script>

<style>
</style>